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Apply Locks To A Resource Group Using The ARM Template In Azure

In this article, we will apply locks to a resource group using the ARM template.

Creation Of The Resource Group

For this example, we created this resource group.

Picture showing the resource group on which lock will be applied using the ARM template

Deploy Using ARM

Click on the resource group "RG1111" and go to the detail screen. On the details screen, click on the "Export Template".

Picture showing the Export template menu in Azure portal

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On the "Export template" screen, click the "Deploy" button.

Picture showing the Deploy button for deploying the ARM template

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A screen for editing the resource group will appear. Click on the "Edit template" button.

Picture showing the Edit template for editing the ARM template

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In the edit template screen, paste the following JSON code.

{
  "$schema": "https://schema.management.azure.com/schemas/2018-05-01/subscriptionDeploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {},
  "variables": {},
  "resources": [
    {
      "type": "Microsoft.Resources/resourceGroups",
      "apiVersion": "2021-04-01",
      "name": "RG1111",
      "location": "eastus",
      "properties": {}
    },
    {
      "type": "Microsoft.Resources/deployments",
      "apiVersion": "2021-04-01",
      "name": "lockDeployment",
      "resourceGroup": "RG1111",
      "dependsOn": [
        "RG1111"
      ],
      "properties": {
        "mode": "Incremental",
        "template": {
          "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
          "contentVersion": "1.0.0.0",
          "parameters": {},
          "variables": {},
          "resources": [
            {
              "type": "Microsoft.Authorization/locks",
              "apiVersion": "2016-09-01",
              "name": "rgLock",
              "properties": {
                "level": "CanNotDelete",
                "notes": "Resource group and its resources should not be deleted."
              }
            }
          ],
          "outputs": {}
        }
      }
    }
  ],
  "outputs": {}
}

Picture showing the template updated with the updated ARM script

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Click on the "Save" button. The edit screen will be displayed again. Click the "Review + Create" button.

Picture showing the Review + Create button for deploying the updated ARM template

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The validation will start. Once the validation is complete, you will get the following message.

Picture showing the message the confirms that validation is passed

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Click on the "Create" button. The lock is added to the resource group.

Picture showing the lock created on the resource group using the ARM template

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Posted By -	Karan Gupta

Posted On -	Sunday, November 14, 2021

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